Draytek Vigor2136 Series User Manual page 35

USB Mode
USB/SIM1 PIN Code
Enable
Username/Password
Authentication
APN Name
Network Mode
WAN DNS
Mode
location of the modem connected.
USB/LTE Settings
DHCP – Dynamic Host Configuration Protocol is used to establish a
connection.
PPP - Point-to-Point Protocol is used to establish a connection.
PIN code of the SIM card in the modem. The maximum length of the
PIN is 15 characters.
Switch the toggle to enable or disable the function.
Authentication – Select the protocol used for PPP authentication.
PAP only - Only PAP (Password Authentication Protocol) is used.

PAP or CHAP - Both PAP and CHAP (Challenge-Handshake

Authentication Protocol) can be used for PPP authentication.
Router negotiates with the PPTP or L2TP server to determine
which protocol to use.
Username – Username provided by the ISP for authentication
(optional).
Password - Password provided by the ISP for authentication
(optional).
Access Point Name to be used for the connection. Please contact your
ISP or carrier for the appropriate value.
Force Vigor router to connect Internet with the mode specified here. If
you choose 4G/3G/2G as network mode, the router will choose a
suitable one according to the actual wireless signal automatically.
IPv4 - WAN Connection Detection
Select Auto or Manual.
If Manual is selected, specify the primary and secondary DNS servers.
IPv4 Primary DNS –IP address of primary DNS server.

IPv4 Secondary DNS - IP address of secondary DNS server.

Configures how the WAN connection is monitored.
Always On - The router assumes the WAN connection is always active.
Ping Detect - The router sends an ICMP (Internet Control Message
Protocol) echo request every second to the host, whose address is
specified in the Ping IP field, to verify the WAN connection. If the
remote host does not respond within 30 seconds, the WAN
connection is deemed to have failed.
If you choose Ping Detect as the detection mode, you have to enter
required settings for the following items.
Ping Gateway IP - Switch the toggle to enable/ use the current

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